if (sensorState == LOW) { // Object is close digitalWrite(ledPin, HIGH); Serial.println("Object Detected!"); } else { digitalWrite(ledPin, LOW); Serial.println("Clear"); } delay(100); }
Today, we are going to fix that. Here is the actual working datasheet for the MH Flying Fish IR Sensor—no confusion included.
If your sensor isn't working like the "broken" datasheet said, here is the troubleshooting guide: Mh Sensor Series Flying Fish Ir Sensor Datasheet Fixed
If you have a drawer full of sensors, chances are you have a few green modules labeled MH Sensor Series "Flying Fish" . These are arguably the most common infrared (IR) proximity sensors on the market. They are cheap, reliable for line-following robots and tachometers, and they run on 5V.
void loop() { int sensorState = digitalRead(sensorPin); if (sensorState == LOW) { // Object is
Stop reading the fake datasheet and run this code instead:
Here are the verified specifications. Ignore any PDF that claims different voltages or pinouts without looking at the back of the board. These are arguably the most common infrared (IR)
The datasheet says "20cm"? Lie. This is a proximity sensor, not a distance sensor. Max reliable range is ~2.5cm (1 inch). If you need long range, buy an ultrasonic or Time-of-Flight (VL53L0X) sensor.